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Date: Mon, 25 Jul 2011 20:37:11 +0100
From: Mark Thomas <markt@apache.org>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Comet: How to send *Chunked* response
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On 25/07/2011 19:23, Sudeep Pradhan wrote:
> Hi,
> 
> I am using CometProcessor to stream event notifications from server to client. The events are generated at random.  I want to send the notification with Transfer Encoding as chunked so that I can use Apache's ChunkedInputStream to parse the output.
> 
> I get the PrintWriter from the ServletResponse using the getWriter() and I write the event notification on this writer. I want this to be in chunk format of length-payload. Currently I do the following:
> 
> PrintWriter writer = connection.getWriter();
> for (int j = 0; j < pendingEvents.length; j++) {
>                                 String eventString = converter.convert(pendingEvents[j]);
>                                 eventString.concat("\r\n");
>                                 final String length = Integer.toHexString(eventString.length());
>                                 writer.print("\r\n" + length + "\r\n");
>                                 writer.print(eventString);
>                                 //logger.info("Writing:" + eventString);
> }
> 
> But this generates a Bad Chunk size exception on client.

Just write and flush the content. Tomcat will handle the chunking for you.

Mark


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